Car-coupling.



PatentedFeb'. H, I902.

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GAR COUPLING.

(No Model.)

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wrmsaszs V 7 we mums PETERS co mom Lfiuo WA UNrrED STATES PATENT 'FFICE-Y WVALTER E. COFFIN, OF CLEVELAND, OHIO, ASSIGNOR TO THE NATIONAL MALLEABLE CASTINGS COMPANY, OF CLEVELAND, OHIO, A CORPORA- TION OF OHIO.

CAR-COUPLING.

SPECIFICATION forming part of Letters Patent No. 693,238, dated February 11, 1902.

Application filed October 5, 1900. Serial No. 32,110. (No model.)

To all whom, it may concern:

Be it known that I, WALTER E. COFFIN, of Cleveland, in the county of Cuyahoga and State of Ohio, haveinvented anew and useful Improvement in- Car-Couplers, of which the following is a full, clear, and exact description, reference being had'to the accompanying drawings, forming part of this specification, in which I I Figure 1 shows in horizontal section a carcoupler constructed in accordance with my invention. Fig. 2 is a verticallongitudinal section on the line II II of Fig. 1, and Fig. 3 is a perspective view ofthe'bushing. Fig. 4 shows in perspective a modified construction of bushing on a smaller scale than Fig. 3.

My invention is designed to provide means for increasing the durability of car-couplers.

It has been found in the use of couplers whose shanks are pivoted in pockets and which are generally used on locomotives or tenders that the shank of the coupler rapidly wears at the pivot-pin hole, and this has been found to be a fruitful source of loss and inconvenience. I prevent this difiiculty by the means described below.

In the drawings, 2 represents the coupler,

the shank of which fits in a pocket 3, and 4 is the pivot-pin by which the shank is pivotally connected to the pocket. In the pivothole of the coupler-shank I place a bushing 5, through which the pivot-pin passes. The bushing is held from turning in the hole by providing it with a head 6 of angular form, which fits in a countersunk seaton the sur face of the shank. When the bushingwears at the rear side of the pin, as it will do after it has been used for some time, the bushing can be removed, turned aquarter-revolution, and rep1aced,when it will present anew Wearing-surface, and this can be repeated, so that it will afford several wearing-surfaces, which can be used and Worn out before the bushing need be discarded and replaced. The head of the bushing being contained in a countersunk seat on the coupler-shank fits under the upper wall of the pocket and is retained in place thereby.

In Fig. i I show a modified construction of bushing, in which instead of providing the bushing-witha square or angular head 6 the entire bushing '5 is made of angular form and is thus prevented from turning. The socket in the shank of the coupler is made in angular form, so as to fit the bushing.

The form of the bushing may be Varied within the scope of my invention, since What I claim is- 1. The combination of a coupler and a pocket arranged to receive thecoupler-shank,apivotpin and a bushing fitting in the pivot-hole of the coupler and havingan angular portion fitting a corresponding socket or recess, said angular portion being adaptedto'hold the bushing from turning during normal operation, butpermitting it to be turned and adjusted to present a new wearing-surface.

2. The combination of a coupler and a pocket Y WALTER E. COFFIN.

Witnesses:

D. W. CALL, 0. W. HoToHKIss. 

